EP 0872074 A1 19981021 - NETWORK SECURITY DEVICE
Title (en)
NETWORK SECURITY DEVICE
Title (de)
NETZWERKSICHERHEITSEINRICHTUNG
Title (fr)
DISPOSITIF DE SECURITE DE RESEAU
Publication
Application
Priority
- US 9614285 W 19960906
- US 52949795 A 19950918
Abstract (en)
[origin: WO9713340A1] A network security device (10) is connected between a protected client (12) and a network (100). The network security device (10) negotiates a session key with any other protected client. Then, all communications between the two clients are encrypted. The inventive device is self-configuring and locks itself to the IP address of its client (12). Thus, the client (12) cannot change its IP address once set and therefore cannot emulate the IP address of another client. When a packet is transmitted from the protected host, the security device (10) translates the MAC address of the client to its own MAC address before transmitting the packet into the network. Packets addressed to the host, contain the MAC address of the security device. The security device (10) translates its MAC address to the client's (12) MAC address before transmitting the packet to the client (12).
IPC 1-7
IPC 8 full level
H04L 9/08 (2006.01); H04L 29/06 (2006.01)
CPC (source: EP US)
H04L 9/0841 (2013.01 - EP US); H04L 9/40 (2022.05 - US); H04L 63/02 (2013.01 - EP US); H04L 63/0428 (2013.01 - EP US); H04L 63/0442 (2013.01 - EP US); H04L 63/068 (2013.01 - EP US); H04L 63/164 (2013.01 - EP US)
Citation (search report)
See references of WO 9713340A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9713340 A1 19970410; AU 7154896 A 19970428; AU 725712 B2 20001019; CA 2211301 A1 19970410; CA 2211301 C 20060124; CN 1173256 A 19980211; EP 0872074 A1 19981021; IL 121416 A0 19991028; IL 121416 A 20010913; SG 92687 A1 20021119; SG 96185 A1 20030523; US 5757924 A 19980526; US 6151679 A 20001121
DOCDB simple family (application)
US 9614285 W 19960906; AU 7154896 A 19960906; CA 2211301 A 19960906; CN 96191481 A 19960906; EP 96932962 A 19960906; IL 12141697 A 19970728; SG 200001506 A 19960906; SG 200001507 A 19960906; US 1010298 A 19980121; US 52949795 A 19950918